Coke-oven with independent heating flue structures



March 26, 1957 P. E. H. FORSANS 2,786,806

coKE-ovEN WITH INDEPENDENT HEATING FLUE STRUCTURES ori inal Filed Feb. 26, 1948 r E 2 Sheets-Sheet l March 26, 1957 P. E. H. FORSANS COKEOVEN WITH INDEPENDENT HEATING FLUE STRUCTURES 2 Sheets-Sheet 2 Original Filed Feb. 26, 1948 Q aw 9 9w United States Patent COKE-OVEN WITH INDEPENDENT HEATING FLUE STRUCTURES Pierre Eugene Henri Forsans, Paris, France Continuation of abandoned application Serial No. 11,094, February 26, 1948. This application March 7, 1952, Serial No. 275,261. In France December 31, 1946 Section 1, Public Law 690, August 8, 1946 Patent expires December 31, 1966 4 Claims. (Cl. 202-222) The construction of coke-ovens with silico-aluminous brick bases and silica brick heating flue structures has been known for a very long time; unfortunately it has been found in use that the greater expansion of the silica superstructure produced dislocation of the aluminons fraction, liable to render the ovens useless. My invention has for its object to provide a method of construction and the optional complementary arrangements which are intended to eliminate this drawback; the invention can also be applied to structures of homogeneous materials.

This application is a continuation of copending application Serial No. 11,094, filed February 26, 1948, now abandoned, entitled Coke Oven With Independent Heating Flue Structures.

In order to make my invention clearly understood, and only for demonstration purposes, I have appended a drawing to the present specification. In said drawing:

Fig. 1A is a sectional view taken along line A-A of Fig. 2.

Fig. 1B is a sectional view taken along line B-B in Fig. 2.

Fig. 2 is a vertical section along CC of Fig. 1B.

Fig. 3 is an elevational view of a battery of coke-ovens constructed according to the invention, with two-part anchorings and a gangway beam forming a medial belt.

Fig. 4 is a vertical section on a level with the anchoring, along DD of Fig. 3.

Fig. 5 is a horizontal section along EE of Fig. 3, the service floor 25 being assumed to have been removed.

Fig. 6 shows, on a larger scale, the adjustable resilient abutments at the joint of the anchorings, against the gang way beam.

Fig. 7 is a perspective view showing the anchoring and strapping arrangement.

In Figs. 1A, 1B and 2, the base of the ovens 1, of silico-aluminous brick, supports the heating flue structures 2 which separate the carbonization cells 3 according to the usual well known arrangement; the inlets for rich or mixed gas are shown at 4, and the air or producer gas inlets provided in 1 are shown at 5 and 6, and the transverse header partitions 7 and the longitudinal walls 8 forming the heating flnes 2, are also shown.

According to the invention, the silico-aluminous base is terminated at the upper part thereof by a series of parallel channels 9 extending transversely of the battery, plumb with the flue walls 8; said walls rest in the channels of the base on a bed of non-fusible silica or other sand 10 (i. e. whose melting point is at least as high as that of the brick used), which fills the empty space formed between the channels and the base of the flue structures without there being any grout, cement, mortar or other connection between the channel 9 and the foot 11 of the walls 8; at their ends nearest the front walls of the battery, the channels 9 are closed by a cross member in such a manner as to leave in front of the feet 11 an empty space 12 which retains the sand and is sufficient to allow of the subsequent expansion of the flue structure, which is comparatively greater than that of the base;

the first courses of headers 7 are mounted with a certain clearance 13, above the base, so that even after the structure has settled, said clearance remains so that there is no friction between 7 and 1; on the front walls this clearance is closed by an air-tight asbestos or other joint 14, which nevertheless allows of sliding; in the cells 3, the bricks or paving members 15 cover the lateral sand joints and in the flue structures 2, said sand joints are covered by members 16 which are mounted dry and are provided with suitable holes for the outlet of the conduits 4, 5

and 6, or others, which thus freely follow the movements of the flue structure.

It will be readily understood that by means of this system, the flue structures 2 are completely independent, and all their expansion or contraction movements relatively to the base 1 can be freely elfected without any contact or adhesion between the two portions, the base 1 rolling or sliding on the sand beds 10 filling the channels 9. The same device can be applied to all the combinations of materials, which are generally of any kind, either for coke-ovens, or for any other structure or machine, its being possible to replace the sand provided as a rolling or sliding means between the two independent portions by any other suitable material or any other device performing the same function in order to fulfil the purpose.

This system is completed by the fixing or anchoring device shown in Figs. 3, 4, 5 and 6, which, as known, is intended to hold the materials together; in these figures, the base 1, which contains the heat generators and is surmounted by the independent flue structures 2 forming the carbonization cells 3, is built on a reinforced concrete foundation 17, as known; the body of the ovens is firmly held by the vertical fixing framework generally arranged in the axis of the flues 2 and respectively attached at the foot by means of the stays 20, and at the top, by means of the usual stays 21, but according to the invention, these vertical anchorings comprise two independent members 18 and 19 which are superposed and separated by a space, for example opposite the joint 14, the member 18 corresponding to the base 1, whereas the member 19 corresponds to the flnes 2; at the joint between 18 and 19, the two members are held at the side by a part 22 of suitable shape which passes through the space provided between 18 and 19 and enables 19 to rest its weight against 18, while'allowing the two parts to slide freely relatively to one another; the part 22 is furthermore provided with a flanged heel 23 which is adapted to fit in the horizontal beam 24 forming the service gangway 25, a portion of the weight of which is thus transferred to the member 18; the beam 24 is supported at the opposite end by the pillars 26 which rest on the brackets 27 emerging from the foundation 17; said brackets furthermore support the service floor 28 at the base of the regenerators. The horizontal beam 24 is pressed towards the body of the ovens by the stays 29 bearing against the battery abutments, or against an identical beam 24 arranged symmetrically on the opposite front wall of the ovens as can be seen at once from the perspective view of Figure 7. On the other hand, the two half-anchorings 18 and 19 are separately pressed against the beam 24, which is calculated and constructed accordingly, by means of independent jacks 30 and 31 which may be identical or not, resilient or rigid, but are separately adjustable in such a manner that the expansion of the flue structures 2 is compensated for independently of that of the base 1; the same device can be used for the longitudinal framework of the battery, but arranged at right angles to the one described; it will be understood that by means of this system of anchorings which completes the method of constructing the independent flue structures, the battery is securely braced and the expansion of the two portions of the battery which are made of different materials is absolutely and separately free and balanced, without any possible reaction of the movements of the flue structures on those of the base, or conversely; the same principle may also be carried out otherwise than in the manner hereinbefore described, for example it is possible to provide one-piece anchorings 18-49 with an auxiliary anchoring for the base, said auxiliary anchoring being adapted to bear against the lower part 18 of the main anchoring, or conversely, an auxiliary anchoring for the flue, etc. But these various embodiments and all those leading to the same result, remain within the scope of the present invention.

I claim:

1. A coke oven comprising a base made of one material, a plurality of parallel channels formed at the top of and extending along the entire length of said base, a sand bed provided in each of said channels, a retort structure comprising a plurality of flue walls and flue partitions made of a different material than the base, the bottom edge of each of said flue walls having an enlarged bottom portion integrally formed thereon, each of said enlarged portions disposed in a parallel channel on the sand bed therein and movable in said channel relative to said base, and a free space provided at each end of each channel situated between said base and said retort structure to provide for the relative movement therebetween.

2. A coke oven comprising a base constructed of one material, a plurality of flue structures made of a different material than the base, and independent of said base, a plurality of seats disposed on the upper surface of and extending along the entire length of the base providing an independent seat for each of the flue structures, means on the seats 'to permit relative movement between the base and the flue structure, and an anchoring and strapping device for the oven comprising lower vertical anchoring members PPlied against the said base, upper vertical anchoring members independent of the said lower anchoring members and applied against the said flue structures, means positioned between said upper and lower anchoring members to allow said members to slide freely relative to one another, a horizontal beam arranged substantially at the level of the plane of junction of the said base with the said flue structures and extending across the entire side of the oven battery, adjustable fixing means for adjustably and independently fixing to said beam the upper end of each of the lower anchoring members and the lower end of each of the upper anchoring members, and stays arranged at the opposite ends of said beam to press it and the anchoring members against the corresponding face of the oven, the whole of the oven thus being strapped by the :said beam, the said anchoring members and the said stay s although the various parts of the oven are capable of expanding to different extents.

3. Cokeoven according to claim 2, wherein the said adjustable fixing means for independently fixing the anchoring members to the beam, comprise members which confer a certain resiliency to the junction between the said beam and the said members.

4. In a coke oven, an anchoring and strapping device comprising lower vertical anchoring members applied against the lower end of the oven, upper vertical anchoring members independent of the said lower anchoring members and applied against the upper portion of the oven, means positioned between said upper and lower anchoring members .to allow said members to slide freely relative to one another, a horizontal beam arranged opposite the plane of separation of the upper and lower anchoring members and extending across the entire .side of the oven battery, adjustable fixing means for adjustably and independently fixing to said beam the Upper end of each of the lower anchoring members and the lower end of each of the upper anchoring members, and stays arranged at the opposite ends of said beam to press it and the anchoring members against the corresponding face of the oven, the whole of said oven thus being rigidly strapped by said beam, said anchoring members and said stays.

References Cited in the file of this patent UNITED STATES PATENTS 824,199 Nungesser June 26, 1906 829,935 'Wickham et al. Aug. 28, 1906 1,352,338 Aarts Sept. 7, 1920 1,466,215 Traer et at. Aug. 28,1923 1,510,857 Munster Oct. 7, 1924 1,704,686 Van Ackeren Mar. 5, 1929 1,882,553 Totzek Oct. 11, -1932 2,131,591 Keith et a1. Sept. 27, 1938 2,141,035 Daniels Dec. 20, 1938 2,147,681 Van Ackeren Feb. 21, 1939 2,413,335 Puening Dec. 31, 1946 FOREIGN PATENTS 395,292 Great Britain July 13, 1933 474,331 Great Britain Oct. 29, 1937 579,268 Great Britain July 29, 1946 

2. A COKE OVEN COMPRISING A BASE CONSTRUCTED OF ONE MATERIAL, A PLURALITY OF FLUE STRUCTURES MADE OF A DIFFERENT MATERIAL THAN THE BASE, AND INDEPENDEDT OF SAID BASE, A PLURALITY OF SEATS DISPOSED ON THE UPPER SURFACE OF SAID EXTENDING ALONG THE ENTIRE LENGTH OF THE BASE PROVIDING AN INDEPENDENT SEAT FOR EACH OF THE FLUE STRUCTURES, MEANS ON THE SEATS TO PERMIT RELATIVE MOVEMENT BETWEEN THE BASE AND THE FLUE STRUCTURE, AND AN ANCHORING AND STRAPPING DEVICE FOR THE OVEN COMPRISING LOWER VERTICAL ANCHORING MEMBERS APPLIED AGAINST THE SAID BASE, UPPER VERTICAL ANCHORING MEMBERS INDEPENDENT OF THE SAID LOWER ANCHORING MEMBERS AND APPLIED AGAINST THE SAID FLUE STRUCTURES, MEANS POSITIONED BETWEEN SAID UPPER AND LOWER ANCHORING MEMBERS TO ALLOW SAID MEMBERS TO SLIDE FREELY RELATIVE TO ONE ANOTHER, A HORIZONTAL BEAM ARRANGED SUBSTANTIALLY AT THE LEVEL OF THE PLANE OF JUNCTION OF THE SAID BASE WITH THE SAID FLUE STRUCTURES AND EXTENDING ACROSS THE ENTIRE SIDE OF THE OVEN BATTERY, ADJUSTABLE FIXING MEANS FOR ADJUSTABLY AND INDEPENDENTLY FFIXING TO SAID BEAM THE UPPER END OF EACH OF THE LOWER ANCHORING MEMBERS AND THE LOWER END OF EACH OF THE UPPER ANCHORING MEMBERS, AND STAYS ARRANGED AT THE OPPOSITE ENDS OF SAID BEAM TO PRESS IT AND THE ANCHORING MEMBERS AGAINST THE CORRESPONDING FACE OF THE OVEN, THE WHOLE OF THE OVEN THUS BEING STRAPPED BY THE SAID BEAM, THE SAID ANCHORING MEMBERS AND THE SAID STAYS ALTHOUGH THE VARIOUS PARTS OF THE OVEN ARE CAPABLE OF EXPANDING TO DIFFERENT EXTENTS. 